Photoshop tone tests

I was playing around with monochrome tones in my last project and so decided to play some more. Here is a gray tone test in photoshop. I tried converting it with the zipatone filter but it wasn't all that great. I really like the look of zipatone but I can't make it work in photoshop. If anyone can instruct me on what to do or direct me somewhere that can help that would be great.